Finding the Fourth Proportional to 513,905.76, 770,415.66 and 198,583.92
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Solution
The fourth proportional to 513,905.76, 770,415.66 and 198,583.92 is: 297,704.70
Step by Step Solution
- Step 1: Write the proportion equation
513,905.76 : 770,415.66 = 198,583.92 : x - Step 2: Convert to fraction form
513,905.76/770,415.66 = 198,583.92/x - Step 3: Cross multiply
513,905.76x = 770,415.66 × 198,583.92 - Step 4: Simplify right side
513,905.76x = 152,992,161,792.19 - Step 5: Solve for x
x = 152,992,161,792.19/513,905.76 - Step 6: Final answer
x = 297,704.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.